What do all macromolecules have in common with each other? O A. They all are formed from the same elements.
B. They all act as catalysts in the body.
C. They all have major roles in cell membranes.
D. They all have peptide bonds between carbon atoms.

How does natural selection change thephenotypes within a population over time?

An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen

Which statement best describes how the nucleus, the rough endoplasmic reticulum, and ribosomes interact during protein synthesis?